#ifndef RetweetCollection_h
#define RetweetCollection_h
#include "Tweet.h" 

class RetweetCollection
{
public:
  RetweetCollection()
      : size_(0) {}

  bool isEmpty() const
  {
    return 0 == size();
  }

  unsigned int size() const
  {
    return size_;
  }

  void add(const Tweet &tweet)
  {
    size_ += 1;
  }

  void remove(const Tweet &tweet)
  {
    size_ -= 1;
  }

private:
  unsigned int size_;
};

#endif // RetweetCollection_h